Blind-hinge.



J. A. POIRIBR.

BLIND HINGE. APPLIOA'IIOII Mum JULY 11. 1910.

970,746. v Patent d Sept20,1910.

have invented new JOSEPH A. POIBIER, F WOONSOCKET, RHODE ISLAND.

BLIND-HINGE.

Specification of Letters Patent.

Patented Sept. 20, 1910.

Application filed July 11, 1910. Serial No. 571,465.

To all whom it may concern:

Be it known that I, J osnrrr A. Penman, a subject of the King of GreatBritain, residing at Woonsocket, in the count of Providence and State ofRhode Is and,

and useful Improvements in Blind-Hinges, of which the following is aspecification.

1 is a. side elevation,

My invention relates to improvements in look hinges, and it consists inthe constructions, combinations and arrangements herein described andclaimed.

An object of my invention is to provide a durable and inexpensive lockhinge for window blinds, adapted to permit ready removal and positioningof the blinds, and which will act to positively lock the blind in openand closed positions without danger of the hinge becoming locked, orcaught, in any intermediate positions of the blind.

A further object of my invention is to provide an improved lock hingeadapted to be securely attached to walls of brick, stone, wood, or othercharacter.

In the accompanying drawings, forming a part of this specification, andin which similar reference symbols represent corresponding parts in theseveral views: Figure illustrating one embodiment of my invention, Fig.2 is a front elevation of the parts shown in Fig. 1. Fig. 3 is a plan ofthe parts shown in Fig. 1. Fig. 4 is a view similar to Fig. 1, with thesocket member locked 1n its closed position.

Fig. 5 is a front elevation of the parts shown in Fig. 4:.

Referring to the drawings, I have shown an attaching support comprisinga flattened spike 1, provided with an extension to constitute an innertenon 2 and an outer tenon 3; the up er edge of said outer tenon beingpositioned slightly below that of the inner tenon. The outer end of theextension is formed to provide a head 4 to provide means forconveniently driving the spike 1 into a supporting wall; the head beingrecessed at 5 adjacent the outer tenon 3 to prevent distortion of thelatter. A brace 6 extends from the support and is provided with a foot7, adapted to be driven, or embedded, in the supporting wall 8, beingpreferably secured by a staple 9. A cylindrical spindle 10 extendsupward from said inner and outer tenons, and is formed with a flattenedoffset upper end 11.

A hinge member comprises a socket 12, adapted to be rotatably mounted onthe spindle 10, and a leaf 13 provided with the usual screw holes forattaching it to a window blind. The socket 12 is longitudinally slottedat 14; to receive the flattened spindle end 11, for permitting readyremoval and positioning of said hinge memher on the spindle 10. Thesocket is provided with a pair of diametrically opposite notches 15 inits lower edge, for receivin the inner and outer tenons to lock the blinin either its closed or open position.

From the above description it will be clear that, in the operation of myinvention, the window blind will be raised sulficiently to release theinner and outer tenons from the notches 15 in the socket 12; the blindbeing then swung to its desired open or closed position. During suchswingin of the blind, the rear lower edge 16 of tlie socket will ride onthe inner tenon 2, while the forward lower edge 17 of the socket will beheld thereby out of engagement with the outer tenon 3.

It will be understood that throughout the entire range of swing the rearedge 16 of the socket will rest on the inner tenon 2, and the slottedforward edge 17 of the socket will rotate past the slightly depressedouter tenon 3. By this construction, the socket will be positively heldagainst engagement of the walls of its slot 1A with the outer tenon 3during all swing of the window blind. This obviates all danger of theblind becoming locked in an intermediate position, or of the slottedsocket being destroyed by accidental engagement between the slot 1A andtenon 3.

I have illustrated a preferred and satisfactory construction, but,obviously, changes could be made within the spirit and scope of myinvention.

Having described my invention, what I claim and desire to secure byLetters-Patent, is:

In a blind hinge, an attaching support comprising a spindle formed witha flattened off-set end, an inner tenon and outer tenon at the base ofsaid spindle, the upper edge of said outer tenon being positioned belowthat of the inner tenon, in combination my hand in presence of twosubscribing witwith a hinge member comprising a slotted nesses. socketrotatably mounted on said spindle and provided with notches in its loweredge 5 for cooperating with said tenons, substan- Witnesses:

tially as described. EDGAR L. SPAULDING,

In testimony whereof I have hereunto set EVELYN W; SPAULDING.

JOSEPH A. POIR'IER. V

